In open-plan offices, call centers, or remote work environments, “unclear hearing” and “unclear speaking” are almost daily problems.

Keyboard noise, colleagues chatting, air conditioning noise, and even the sound of a coffee machine can significantly degrade call quality. The result is: customers asking repeated questions, longer communication times, and even impacted sales.

If you’re looking for a truly actionable way to improve call clarity, this article will provide a comprehensive overview from three perspectives: practical implementation, equipment upgrades, and professional solutions.

I. Why is call clarity so important in noisy environments?

Many companies don’t initially realize the cost of this issue.

However, in call centers or sales teams, call clarity directly impacts:

Whether the customer understands you
Whether customer service representatives need to repeat themselves
Average call duration (AHT)
Customer satisfaction (CSAT)
Conversion rate

Especially in open-plan office environments, background noise can cause microphones to pick up incorrect audio, meaning the other party hears not only your voice but also the entire office.

If you want to understand more deeply the impact of noise on call center efficiency, you can refer to this article:

[Why is Noise Cancellation Important for Office Headsets?]

II. How Does Unclear Call Quality Usually Occur?

In our actual projects with clients, the most common problems are actually quite simple:

1. Using a laptop’s built-in microphone

These microphones have a large pickup range, easily picking up ambient noise as well.

2. Incorrect microphone placement

Microphone too far from the mouth → Low volume
Microphone too low → Picks up rustling sounds from clothing

3. Lack of noise reduction capabilities

Equipment without ENC technology will transmit all sound along with the microphone.

4. The environment itself is too noisy

Open-plan offices are a typical problem scenario.

III. 10 Practical Tips to Really Improve Call Clarity

The following methods are suggestions we frequently give to clients in office headset projects, and they are generally easy to implement.

Tip 1: Correct Microphone Placement (Most Easily Overlooked)

It is recommended to place the microphone about 1-2cm from the corner of the mouth, not directly in front of the mouth.

Too close and you’ll get popping sounds; too far and you won’t get clear audio.

For more information, please refer to [How to Properly Set Up Your Office Headset for Optimal Call Quality].

Tip 2: Don’t use your laptop’s built-in microphone.

If you’re working in customer communication, sales, or a call center, the built-in microphone is definitely insufficient. We recommend using a professional office headset.

You can refer to our [Office Headset Solution].

Tip 3: Enable software noise cancellation (Zoom/Teams).

Many people overlook this:

Zoom has “Suppress Background Noise.”

Microsoft Teams has a “Noise Suppression Mode.”

However, note that software noise cancellation can only be used as an aid and cannot replace hardware ENC.

Tip 4: Choose a headset that supports ENC (a key upgrade point).

ENC (Environmental Noise Cancellation) is a microphone noise reduction technology. Its function is to allow the other party to hear “your voice,” not background noise.

In call centers or open office environments, this is the most effective solution.

Understanding ENC Technology:

[ENC vs ANC: Analysis of the Differences in Noise Cancellation Technology for Office Headsets]

Tip 5: Reduce Ambient Noise Sources

For example: Keyboard typing, mouse clicks, desktop vibrations

These sounds are all picked up by the microphone.

Suggestions:

Use a silent keyboard

Keep away from air conditioning vents

Adjust your desktop layout

Tip 6: Optimize Your Workspace Layout

For team work environments, consider:

Setting up a “quiet zone”

Separating call areas

Using sound-absorbing materials (walls/partitions)

Tip 7: Conduct a 5-Second Test Before Calls

Many call problems can be avoided in advance.

Suggestions before each important meeting:

Test microphone volume

Check background noise

Confirm headset connection

Tip 8: Adjust Microphone Sensitivity

Microphone sensitivity that is too high will pick up too much ambient noise.

Recommendations: Reduce input gain, adjust system settings appropriately

Tip 9: Avoid “Open Microphone Mode”

In multi-person meetings, if you are not speaking, it is recommended to mute your microphone: reduce noise interference and improve overall meeting clarity.

Tip 10: Upgrade to a professional UC office headset (the most effective way)

If you have tried the above methods but the effect is limited, the root cause is usually: the equipment is not professional enough.

In a corporate environment, we recommend using:

Dual-microphone ENC noise-canceling headset
Directional pickup technology
UC (Unified Communication) certified headset

Boxin Electronics UC Office Headset Product Solution: [UC Office Headset Series]

IV. ENC vs ANC vs PNR: Key Differences Many People Get Confused About

Many users confuse the concepts of noise cancellation, but the three are completely different:

ENC (Microphone Noise Cancellation)

Target: The sound heard by the other party
Goal: Remove ambient noise
Application: Meetings / Call Centers

ANC (Active Noise Cancellation)

Target: The sound heard by the wearer
Goal: Reduce external noise
Application: Commuting / Airplanes

PNR (Physical Noise Reduction)

Target: Earcup structure
Goal: Blocks some external noise
Application: Basic noise-isolating headsets

If you are doing customer communication, ENC (External Noise Cancellation) is truly crucial, not ANC (Auxiliary Noise Cancellation).

V. Why do professional UC (Unified Call Control) headsets significantly improve call quality?

Taking Bosun Electronics’ UC office headset design as an example, its core advantages are:

1. Dual-microphone ENC algorithm

It can identify the direction of human voices and filter background noise.

2. Directional pickup structure design

Reduces sound from non-speech directions entering the microphone.

3. Factory-level acoustic tuning

Different optimizations for different usage scenarios (office/call center).

4. OEM/ODM customization capabilities

We can adjust according to customer brand needs:

Noise reduction level
Microphone structure
Wearing style (over-ear/earhook)

If you want to learn about our complete manufacturing capabilities, you can see here: [OEM/ODM Customization Service]

VI. Applicable Scenarios: These industries most need to improve call clarity

Call Center
SaaS Customer Service Team
Finance/Insurance Sales Team
Remote Work Team
Foreign Trade Customer Communication Team

VII. Frequently Asked Questions (FAQ)

Q1: I only use Zoom, do I still need an ENC headset?

Yes. Software noise reduction cannot completely filter ambient noise.

Q2: Does ANC improve call quality?

No. ANC only improves the sound you hear; it doesn’t affect the other party’s ability to hear you.

Q3: Is there a big difference between regular headsets and UC headsets?

The difference is very noticeable in noisy environments, especially in customer service and sales scenarios.

VIII. Summary

Improving call clarity can be divided into three levels:

1. Basic optimization (environment + settings)

2. Software noise reduction (Zoom/Teams)

3. Professional hardware upgrade (ENC UC headset)

For light office work, the first two steps may be sufficient.

However, if you are in a call center, customer service, or high-frequency communication environment, a professional UC office headset is almost a must.

Need a professional office headset solution?

Boxin Electronics specializes in:

UC office headset manufacturing
Call center headset solutions
ENC noise-canceling headset OEM/ODM customization
Contact us for product solutions and sample support.